panel

Java Swing Card Layout change the displayed Panel?

痴心易碎 提交于 2019-11-27 08:37:06
问题 so I have this jFrame with a Panel. Inside that panel there are two more panels and the layout is set to cards. Inside one of those two panels there is a button. How can I change the panel thats being displayed when that button is pressed? 回答1: Try this code snippet, hope the comments might help you understand the sequence. import java.awt.*; import java.awt.event.*; import javax.swing.*; /* Here we are first declaring our class that will act as the * base for other panels or in other terms

c# panel for drawing graphics and scrolling

别说谁变了你拦得住时间么 提交于 2019-11-27 08:03:21
I want to be able to use a panel or similar to draw graphics onto a Winform. I cannot seem to see anything regarding adding scrollbars if the graphics become larger than the control? Is it possible to do this with a panel or is there a similar control that will allow it? Thanks. Set the AutoScroll property to true and the AutoScrollMinSize property to the size of the image. The scrollbars will now automatically appear when the image is too large. You'll want to inherit your own class from Panel so that you can set the DoubleBuffered property to true in the constructor. Flicker would be

Twitter Bootstrap 3 - Panels of Equal Height in a Fluid Row

谁都会走 提交于 2019-11-27 07:06:25
I am new to Bootstrap 3 and I would like to have 3 panels on my landing page of equal height, even though the middle panel has less content. When resized they become the same height, but are not upon initial visit to the page. I already tried hiding the overflow with CSS and it cuts off the bottom of the panel which isn't what I want, so I'm thinking I need to use jQuery. Here is my code: <div class="row-fluid"> <!--begin panel 1 --> <div class="col-md-4"> <div style="text-align:center" class="panel panel-primary"> <div class="panel-heading"> <h1 class="panel-title text-center">Web y Metrícas<

Why do my panels clip all the way around the panel when made smaller than the explicit size?

ⅰ亾dé卋堺 提交于 2019-11-27 07:02:19
问题 Probably a confusing question title. The Grid with the Red Rectangle is an example of how it should look. The Grid with the Blue Rectangle (not appearing in the image) has a margin that forces the second grid to be smaller than I've explicitly set it. Which appears to cause WPF to flip out and hide everything outside of it's arranged bounds. I've tried setting the Clip to be larger than the Grid. The only way I've been able to avoid this is to write a custom panel that measures it's children

Removing dynamic controls from panel

♀尐吖头ヾ 提交于 2019-11-27 06:37:01
问题 I have dynamically generated controls on the panels of windows form and i have also generated a button for removing the controls, all in rows. int c = 0; private void button1_Click(object sender, EventArgs e) { int v; v = c++; panel1.VerticalScroll.Value = VerticalScroll.Minimum; ComboBox combo = new ComboBox(); combo.Name = "combobox" + v ; combo.Location = new Point(30, 5 + (30 * v)); ComboBox combo2 = new ComboBox(); combo2.Name = "combobox2" + v ; combo2.Location = new Point(170, 5 + (30

How can I change the Java Runtime Version on Windows (7)?

好久不见. 提交于 2019-11-27 05:00:49
问题 How can I change the Java Runtime Version on Windows. I installed Java 7 for some tests, and now I need the old java6 as system default, but I don't want to uninstall the Java 7 (I need it for later tests). Can I change the system-used JRE in the control panel/Java/JRE tab? I can change/edit/add/delete the user-used version, but not the system-used. 回答1: For Java applications , i.e. programs that are delivered (usually) as .jar files and started with java -jar xxx.jar or via a shortcut that

'WSGIRequest' object has no attribute 'user' Django admin

廉价感情. 提交于 2019-11-27 03:29:23
When I trying to access the admin page it gives me the following error: System check identified no issues (0 silenced). June 21, 2016 - 15:26:14 Django version 1.9.7, using settings 'librato_chart_sender_web.settings' Starting development server at http://127.0.0.1:8000/ Quit the server with CONTROL-C. Internal Server Error: /admin/ Traceback (most recent call last): File "/Library/Python/2.7/site-packages/django/core/handlers/base.py", line 149, in get_response response = self.process_exception_by_middleware(e, request) File "/Library/Python/2.7/site-packages/django/core/handlers/base.py",

copying free hand drawing from panel in visual studio 2013

半城伤御伤魂 提交于 2019-11-27 02:19:22
I want to draw free hand in a form (picture box) on visual studio and copy the same figure (that I draw) on another panel/picture box. Also they should not be dots forming one line but a continuous line. Please help. using System; using System.Collections.Generic; using System.ComponentModel; using System.Data; using System.Drawing; using System.Linq; using System.Text; using System.Threading.Tasks; using System.Windows.Forms; namespace WindowsFormsApplication1 { public partial class Form1 : Form { Pen p_white; bool draw = true; private Graphics objgraphics; public Form1() {

Any trick to use opacity on a panel in Visual Studio Window Form?

China☆狼群 提交于 2019-11-27 01:38:43
I recently started exploring Visual Studio. I was trying to create a slide menu. More specifically, when the user would press the button a submenu would pop up to the right. To achieve that i have placed a Panel to resize itself. Apart from functionality i wanted to add a bit more design and make the Panel appear a bit faded. I know that Panels in Visual studio do not have opacity, but i was thinking if anyone knows a way-trick-idea about how it can be achieved. I tried a Picture Box but that too didn't have Opacity as a property. I avoided to use the regular Menu object that visual studio

In what order are Panels the most efficient in terms of render time and performance?

只谈情不闲聊 提交于 2019-11-26 21:14:39
There are many times when more than one panel would suitable for the layout I want, however I know there is a difference in render times for different panel types. For example, MSDN states that A relatively simple Panel , such as Canvas , can have significantly better performance than a more complex Panel , such as Grid . So in terms of render time and performance, in what order are WPF panels the most efficient? WPF Panels: Canvas DockPanel Grid UniformGrid StackPanel WrapPanel VirtualizingPanel / VirtualizingStackPanel I'm fairly sure I saw a list of this somewhere online, but I can't find